User profiles for S. Zapperi

Stefano Zapperi

University of Milano
Verified email at unimi.it
Cited by 14934

Colloquium: Modeling friction: From nanoscale to mesoscale

A Vanossi, N Manini, M Urbakh, S Zapperi… - Reviews of Modern Physics, 2013 - APS
… 5 fs per second, ie, approximately 109 fs ¼ 1 s in a simulation day. This total time scales …
be in the 0.1 to 10 m=s range: In 1 s the slider advances by 0.1 to 10 m, ie, approximately 10 …

[HTML][HTML] Oral mucositis: the hidden side of cancer therapy

…, S Zapperi, G Blandino, A Morrone, S Strano - Journal of experimental …, 2020 - Springer
… Indeed, the antimetabolites drugs, S-1 and capecitabine are associated to a lower risk of
mucositis development compared to the 5-FU treatment [18]. Conversely, when capecitabine is …

Disordered mechanical metamaterials

M Zaiser, S Zapperi - Nature Reviews Physics, 2023 - nature.com
… 7,8 , characteristic of materials with negative Poisson’s ratio. Metamaterials such as polyurethane
… Rayneau-Kirkhope, D., Bonfanti, S. & Zapperi, S. Density scaling in the mechanics of a …

Statistical models of fracture

MJ Alava, PKVV Nukala, S Zapperi - Advances in Physics, 2006 - Taylor & Francis
… In general, however, γ s could also display spatial correlations, as measured by the two …
in γ s imply that an increased crack opening will cost energy that not only depends on γ s at a …

Dislocation avalanches, strain bursts, and the problem of plastic forming at the micrometer scale

FF Csikor, C Motz, D Weygand, M Zaiser, S Zapperi - science, 2007 - science.org
… The total effective-stress drop caused by an avalanche of strain s is (Θ + Γ)s, where Γ is the
effective stiffness of the specimen-machine system (for a cubic compression specimen with …

Intermittent dislocation flow in viscoplastic deformation

MC Miguel, A Vespignani, S Zapperi, J Weiss… - Nature, 2001 - nature.com
… Stefano Zapperi … An edge dislocation with Burgers vector b located at the origin gives
rise to a shear stress σ s at a point r = (x, y) of the form … Stefano Zapperi

Cell–cell adhesion and 3D matrix confinement determine jamming transitions in breast cancer invasion

…, M Vullings, GJ Bakker, J Starruß, P Bult, S Zapperi… - Nature cell …, 2020 - nature.com
… ; 10 min, 20 C) and haematoxylin (30 s) according to manufacturer’s protocol. Sections were
mounted in Pertex medium (Histolab) and scanned (Pannoramic 250 Flash II, 3DHistech). …

Dynamics of a ferromagnetic domain wall: Avalanches, depinning transition, and the Barkhausen effect

S Zapperi, P Cizeau, G Durin, HE Stanley - Physical Review B, 1998 - APS
… The avalanche size s the area under the jump and duration T distributions also decay as …
nld 1 and in mean-field theory is proportional to the avalanche size s m m since s ld 1 and …

[HTML][HTML] Paths to self-organized criticality

…, MA Muñoz, A Vespignani, S Zapperi - Brazilian Journal of …, 2000 - SciELO Brasil
… P(s) ~ s -t s , over a wide range of avalanche sizes and durations; there is, as expected, an
exponential cutoff s c ~ L D s … (Our best estimates are t s = 1.10(2) and D = 2.21(1).) The upper …

Self-organized branching processes: mean-field theory for avalanches

S Zapperi, KB Lauritsen, HE Stanley - Physical review letters, 1995 - APS
… An important feature of such systems is that they respond to external perturbationsby
avalanches of all sizes s, with a power-law distribution D(s) —s ', where r is a scaling exponent. …